Many people wonder what blue light is and how it affects our body. The following article will answer your questions.
What is Blue Light?
Blue light is a type of light emitted continuously from devices such as computer screens, televisions, smartphones, tablets, and even LED lights. With high energy, blue light enhances visibility outdoors. However, exposure to screens at night can be extremely harmful.
Avoid using phones at night.
Blue light contains high energy in a narrow spectrum from 415 to 455nm, which can be particularly harmful to the eyes, specifically the lens and retina. In photometry, the blue light spectrum carries more energy and can penetrate your eyes directly, leading to nearsightedness and macular degeneration.
Prolonged exposure to blue light often results in eye-related issues such as Computer Vision Syndrome and age-related macular degeneration.
Many people have the harmful habit of turning off all lights and using their phone in bed to watch something to help them sleep. This practice can be very detrimental to both the eyes and the body if continued over time.
Specific Dangers of Blue Light
Blue light not only affects the eyes but also impacts our circadian rhythm and overall health as follows:
Blue Light Inhibits Melatonin Production
Melatonin is a hormone that helps the human body fall asleep quickly. If the brain does not produce enough melatonin due to exposure to blue light from electronic devices at night, you will find it hard to sleep and feel drowsy. Avoiding screens such as TVs, phones, and tablets at least one hour before bedtime is a good solution for better sleep.
Affects the Body’s Circadian Rhythm
Our body’s circadian rhythm is a response to light and dark, influencing bodily functions, mental state, and behavior over a 24-hour cycle. It also affects the sleep-wake cycle, hormone production, and regulates body temperature. Blue light is one of the most significant factors affecting circadian rhythm today, making your body feel tired and unbalanced.
Blue Light Causes Negative Stimulation
During the day, blue light does not have adverse effects since sunlight also contains blue light; however, at night, it can disrupt your relaxation and rest by attracting your attention, leading to overstimulation and mood changes.
Blue Light Causes Macular Degeneration
Long-term exposure to a substantial amount of blue light can lead to age-related macular degeneration.
Solutions and Remedies:
- The best remedy is to minimize exposure to devices such as computers, phones, and televisions, especially at night and before bedtime.
- You can also purchase screen protectors for your TV and phone or enable night mode on your devices.
- Consider using glasses that filter blue light, which can benefit both nearsighted individuals and those with normal vision (0-degree glasses).
You will stop using your smartphone before bed after reading this article
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